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| 1 | Above-ground biomass accumulation and nitrogen fixation of broom ( Cytisus scoparius L.) growing with juvenile Pinus radiata on a dryland site显示文摘 | Michael S. Watt Peter W. Clinton David Whitehead Brian Richardson Euan G. Mason Alan C. Leckie | 2003 | Forest Ecology and Management2003，，1： | 1 |
| 2 | Developing an Approach for Data Management Education: A Re- port from the Data Information Literacy Project显示文摘 | Jake Carlson Lisa Johnston Brian Westra Mason Nichols | 2013 | The International Journal of Digital Curation2013，8，1： | 1 |
| 3 | PERCEIVED MANAGERIAL DISCRETION: A STUDY OF CAUSE AND EFFECT显示文摘 | MASON A.CARPENTER BRIAN R.GOLDEN | 1998 | Strat Mgmt J1998，，3： | 1 |
| 4 | 显示文摘 | Christian A Andersen Brian Mason K K | 1964 | Science1964，146，3641： | 1 |
| 5 | The effects of maxillary protraction therapy with or without rapid palatal expansion: A prospective, randomized clinical trial显示文摘 | Gregory A. Vaughn Brian Mason Hong-Beom Moon Patrick K. Turley | 2005 | American Journal of Orthodontics & Dentofacial Orthopedics2005，，3： | 1 |
| 6 | Forage production and persistence characteristics of grazed native warm-season grass mixtures with or without nitrogen fertilizer显示文摘Background:Native warm-season grass(NWSG)mixtures may provide a lownitrogen(N)-input summer perennial forage option to extensively managed forage-livestock systems.Methods:Mixed pastures of big bluestem(Andropogon gerardii Vitman),little bluestem(Schizachyrium scoparium Michx.),and indiangrass(Sorghastrum nutans L.)fertilized with 0 or 67 kgNha−1 were continuously stocked with beef heifers and cows.Forage mass,nutritive value,and canopy heights were determined every 2 weeks during the grazing season.Stand persistence measures included the canopy cover and leaf area index(LAI)and plant crown density at spring emergence following 3 years of grazing management.Results:Forage mass,canopy height,and stocking densities were greater for N-fertilized NWSG than unfertilized NWSG for the first 30 days of the growing season across the 3-year study.Forage NWSG fertilized with N had a greater decrease in LAI during the growing season(51%decrease)than unfertilized NWSG.Spring NWSG plant density estimates following 3 years of grazing did not differ across N management strategies.Conclusions:Forage NWSG mixtures supported superior forage attributes and greater stocking densities early in the grazing season under low-level N than zero-N-input systems and may provide a low-N-input alternative for improved species use in southeastern US forage-livestock systems. | Caroline Nicole Chappell Marty Landon Marks Katie Michelle Mason Liliane Severino da Silva Joshua Luke Jacobs Mary Kimberly Mullenix Sandra Leanne Dillard Russell Brian Muntifering | 2022 | Grassland Research2022，1，3： | 0 |
| 7 | Field scanner design for MUSTANG of the Green Bank Telescope显示文摘MUSTANG (Multiplex SQUID TES Array at Ninety GHz) is a bolometer camera for the Green Bank Telescope (GBT) working at a frequency of 90 GHz.The detector has a field of view of 40 arcsec.To cancel out random emission change from atmosphere and other sources,requires a fast scanning reflecting system with a few arcminute ranges.In this paper,the aberrations of an off-axis system are reviewed.The condition for an optimized system is provided.In an optimized system,as additional image transfer mirrors are introduced,new aberrations of the off-axis system may be reintroduced,resulting in a limited field of view.In this paper,different scanning mirror arrangements for the GBT system are analyzed through the ray tracing analysis.These include using the subreflector as the scanning mirror,chopping a flat mirror and transferring image with an ellipse mirror,and chopping a flat mirror and transferring image with a pair of face-to-face paraboloid mirrors.The system analysis shows that chopping a flat mirror and using a well aligned pair of paraboloids can generate the required field of view for the MUSTANG detector system,while other systems all suffer from larger off-axis aberrations added by the system modification.The spot diagrams of the well aligned pair of paraboloids produced are only about one Airy disk size within a scanning angle of about 3 arcmin. | CHENG JingQuan LI Yang LI XinNan MASON Brian | 2011 | Science China(Physics,Mechanics & Astronomy)2011，54，11： | 0 |
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